3,7cm ÚV vz. 38
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|3.7cm ÚV vz. 38 (Škoda A7)|
|Place of origin||Czechoslovakia|
|In service||1938 to 1945|
|Wars||World War II|
|Barrel length||1.769 m (5 ft 10 in) L/47.8|
|Shell||APCBC, APCR, HE|
|Caliber||37.2 mm (1.46 in)|
|Muzzle velocity||762 m/s (2,500 ft/s)|
|Effective firing range||1,500 m (1,600 yd)|
The gun was the primary armament of the Czech LT vz. 38 light tank, known in German service as the Panzer 38(t).
In German service, in addition to conventional high explosive ammunition, the weapon fired two anti-tank rounds. The primary round was the Panzergranate Pzgr.(t) umg. armor-piercing composite ballistic cap (APCBC) which could penetrate 67 mm of armor plate at 100 m and 57 mm at 500 m. Penetration dropped to 43 mm at 1000 m and 33 mm at 1500 m. The APCBC round was ineffective at 2000 m. The rarer tungsten Panzergranate 40 armor-piercing composite rigid (APCR) round could penetrate 91 mm at 100 m, but only 49 mm at 500 m. Penetration dropped to 24 mm at 1000 m. The APCR round was not effective at 1000 m or beyond.
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